La Crescenta

Bob Jamieson, 59, cleans up rocks in front of his mother-in-law's home on Canyonside Road in La Crescenta. He said flow of debris down the street sounded like a "loud river."

Bob Jamieson, 59, cleans up rocks in front of his mother-in-law's home on Canyonside Road in La Crescenta. He said flow of debris down the street sounded like a "loud river." (Francine Orr / Los Angeles Times)

Bob Jamieson, 59, cleans up rocks in front of his mother-in-law's home on Canyonside Road in La Crescenta. He said flow of debris down the street sounded like a "loud river."